The worksheet contains questions about physical and chemical changes of different substances. Each question should be answered with a diagram or table. The answers should be simple and straightforward. Often, people confuse the two types of change. One type of change involves the changes in the substance’s structure. Another type is a change in its properties. You can find out more about each type of change by reading our answer key. The worksheet includes several examples of physical and chemical changes.
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Physical changes don’t involve the creation of new substances. They are reversible. On the other hand, chemical changes are permanent and are more difficult to reverse. An example of a physical change is burning a candle. The result of a burning candle is a different substance than the original one. For example, when natural gas is burned in a furnace, it turns into methane, oxygen, and water. These new substances have different chemical properties than their original counterparts.
Physical changes are reversible. A simple example is heating water. Using a candle will melt the wax. However, using a furnace will change natural gas into methane, oxygen, and water. These new substances have different properties than the original ones. A chemical change is permanent. A physical change, on the other hand, is permanent. You may have a candle that burns but not the same one that burned, but you’ll notice that it becomes a new substance.
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What’s the difference between a physical and a chemical change? The differences between the two are vast. In a laboratory, a candle burns but does not create new chemicals. A natural gas furnace burns natural gas, creating methane, oxygen, water, and carbon dioxide. While these changes are permanent, they still happen. For this reason, it is essential to understand the difference between the two types of changes.
Physical and chemical changes are not the same. The two types of changes are similar, but they differ in the way they occur. A physical change is a temporary change, while a chemical change is irreversible. For example, a candle burns water and turns it into water and oxygen. A chemical reaction requires a specific change of gas. Similarly, a catalytic converter will transform nitrogen dioxide into oxygen.
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When a substance undergoes a physical change, the material’s properties change. These changes are reversible and irreversible. For example, burning wood will turn into ash, but it will not change into water. As a result, the substance will become a gas, which will have the same properties as the original material. For example, water will become a solution when it reaches a boiling point.
A physical change takes place when a substance’s properties change. For instance, an ice cube changes shape and acquires the ability to flow, but its composition does not change. For example, when a liquid is heated, it turns into carbon dioxide. The substance’s composition is unchanged. If a liquid is boiled, it will change to vapor. A heat source will turn it into a fire, but the heat from the fire will convert it into steam.
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A physical change is when a substance’s properties change. It can be reversible or irreversible. For example, an ice cube can be heated, which results in new water molecules. A chemical change is not reversible. The same applies to a burning substance. A liquid will turn into an ash or carbon dioxide, depending on the fabric. This means that a substance must go through a process to become a liquid.
A physical change is when a substance changes. The melting of an ice cube produces a new substance. In addition to ice, it melts into carbon dioxide, but its identity remains unchanged. A material’s chemical properties can also change if it is heated. For example, a water vapor can change to air, but its molecules still contain the same components that they did when it was first hot.
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